diff options
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/spin_lock.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/spin_lock.c b/tools/testing/selftests/bpf/verifier/spin_lock.c index 781621facae4..0a8dcfc37fc6 100644 --- a/tools/testing/selftests/bpf/verifier/spin_lock.c +++ b/tools/testing/selftests/bpf/verifier/spin_lock.c @@ -331,3 +331,42 @@ .errstr = "inside bpf_spin_lock", .prog_type = BPF_PROG_TYPE_SCHED_CLS, }, +{ + "spin_lock: regsafe compare reg->id for map value", + .insns = { + BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), + BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_6, offsetof(struct __sk_buff, mark)), + BPF_LD_MAP_FD(BPF_REG_1, 0), + BPF_MOV64_REG(BPF_REG_9, BPF_REG_1), + BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_7, BPF_REG_0), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_9), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), + BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), + BPF_EXIT_INSN(), + BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_lock), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_6, 0, 1), + BPF_JMP_IMM(BPF_JA, 0, 0, 1), + BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_spin_unlock), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .fixup_map_spin_lock = { 2 }, + .result = REJECT, + .errstr = "bpf_spin_unlock of different lock", + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .flags = BPF_F_TEST_STATE_FREQ, +}, |